LAWRENCEVILLE - A grand jury has indicted three people, including two teens, in a June slaying, and another man is charged in an alleged drunken crash that killed his best friend.

Kevin Henderson, 20, and two 14-year-olds, Brandon Chance Ennis and Michael Anthony White, are charged with murder and two counts of aggravated assault in the June 11 shooting death of Demetrius White (no relation to Michael White).

According to police, the three suspects were involved in some sort of altercation with Demetrius White outside Michael White's Caboose Court home when someone fatally shot Demetrius in the back of the head.

Gwinnett County District Attorney Danny Porter in September said he would review all the evidence before deciding whether to try Michael White and Ennis as adults.

Thursday, he confirmed that he would.

At least two people fired several shots from a "long gun" into Demetrius White's car, Porter said, adding that both teens have been identified as shooters.

"Given the serious nature of the crime and the methodology of the murder, I decided to proceed with the case as adults," Porter said.

A second victim, 17-year-old Carl Judson, was shot in the wrist and survived. Porter said a third person was not shot, but is listed as a victim of an aggravated assault.

White and Ennis were arrested on July 15 at Hartsfield-Jackson Atlanta International Airport after returning from California, where they are from.

Henderson was arrested by U.S. Marshals outside his Oakland, Calif., home on Aug. 20. He was extradited back to Georgia on Sept. 18 and remains in the Gwinnett County Jail.

In a separate indictment, police said 22-year-old Christopher Davis, of Duluth, had been out drinking with his best friend on the night of July 10 before crashing his 1997 Nissan pickup truck on Lake Shore Drive in Duluth.

According to reports, Davis lost control of his truck, hit an embankment and mailbox before the vehicle flipped, coming to rest on its wheels. Police said Davis then drove off, driving about a mile and a half before realizing his passenger, 24-year-old Clint Gercone, was injured.

Davis pulled Gercone out of the vehicle, according to police, and called his father and 911 when he realized Gercone was dead.

Reports said Gercone died from head injuries.

Davis reportedly had a blood alcohol content of .161, more than twice the legal limit. He is charged with homicide by vehicle, driving under the influence and failure to stop at the scene of an accident.

Jail records show that Davis was also charged with DUI, open container and damaging property in a 2005 crash.